The Emerald & Steel Starter Deck did have foils to keep the Amethyst & Ruby combination from being undefeatable, but if I got lucky with my cards early in the game, I could make large leaps in lore
Ajani, Nacatl Pariah / Ajani, Nacatl Avenger Ajani, Nacatl Pariah is a warrior that can handle itself formidably, but really shines with at least a couple cats in the litter
The Sanji Comic Parallel adds a true grail-tier chase card, and the event card SPs offer premium art for iconic game moments
Machinist's Arsenal can be a powerful late-game card for an equipment build because you'll likely have quite a few artifacts on the field
Shiny Museum 5 If you've read the above Shining Revelry Secret Missions, then you'll probably already know what you need to do for 'Shiny Museum 5'
Card: Kurikara Divincarnate (RA05-EN147), crafted for collectors and players alike